top of page
ibs website graphics.jpg


IBS-80 patch testing identifies food allergies that may be causing your irritable bowel syndrome (IBS). By avoiding foods identified by the testing, your symptoms may lessen or completely disappear.

In clinical studies, over 50% of patients improved, including 30% whose symptoms nearly or completely resolved.


The IBS-80 Revolution

Until now, the medical community believed that food allergies do not generally cause IBS. The reason: research had focused on the wrong type of allergy (type 1 - think peanut allergy - and type 3), detected by blood tests .


Dr. Michael Stierstorfer, a dermatologist and former IBS sufferer, knew that there is a different type of allergy (type 4 - think poison ivy), detected by patch testing - commonly used for skin rashes. In groundbreaking research, Dr. Stierstorfer discovered that type 4 food allergies are the cause of IBS in many patients. 

This major breakthrough will fundamentally change the evaluation and treatment of IBS.


  • Facebook
  • Instagram
  • YouTube
  • Twitter

Hi. I'm Michael Stierstorfer, M.D., inventor of the IBS-80 Skin Patch Test. In 2008, I developed IBS symptoms and was diagnosed with IBS. When standard treatments didn't help, I was determined to find a solution. As a dermatologist, my specialty is the skin. I knew that the skin and the lining of the intestine are similar in some important ways.

rough IBS.png
Dr Mike
Why IBS-80

Introduction to IBS-80  (less than one minute)

ho ibs

How much do you know about IBS? Take the quiz!


What Makes IBS-80 Different?

prick and scratch test.jpg
patch test.jpg

IBS sufferers are often told that food allergies do not cause IBS. That’s because older studies looked at the wrong kind of allergy (think peanut allergy).

IBS-80 is a series of patch tests that test for a different kind of allergy (think poison ivy). Patch testing is routinely used to look for allergies that cause skin rashes, but until now it was never used to investigate IBS. IBS-80 tests for allergies to 80 common foods and food additives. By eliminating foods that cause an allergic reaction from your diet, your symptoms may improve or even resolve.

How does.png


     IBS-80 patch testing is painless and easy. 



The skin patch test consists of

food allergens in small wells fixed

to hypoallergenic adhesive



At that same visit, your provider

will perform an initial patch

test reading 



Patches with 80 food and

food additive allergens are

placed on your back



One or two days later when you return for your third and final visit, each area is checked again for

new allergic reactions



Two days later your  provider removes the patches and

outlines the testing sites



Your provider will review the results and discuss which food(s) to avoid

Food patch testing is painless and does not use needles or skin pricks.  Patches are prepared by licensed compounding pharmacists at The Compounding Pharmacist in West Chester, PA, following Pennsylvania Pharmacy Board good manufacturing practices and United States Pharmacopeia Chapter 795 guidelines.

If you have any known food or food additive allergies, report them to your provider before your provider orders  IBS-80. They will be excluded from your patch tests.


How much do you know about IBS? Take the quiz!


What Patients Are Saying

"This is a life-changer. I thought the daily discomfort was normal."

 - Deborah D. / 42 years old

IBS-80 uses skin patch testing to identify food allergies associated

with your IBS. With the testing, you can avoid just the foods that may be causing your symptoms. Not only can you get your everyday life back, but you can also enjoy a more extensive range of foods.


Traditional IBS dietary management often calls for patients to cut

large food groups from their diet, like dairy, gluten, and FOD-MAP. But sometimes, it's just one or a few foods that cause your Irritable Bowel Syndrome symptoms.


Have you been struggling with IBS?

The IBS-80 skin patch test might be right for you.

Click and find a participating physician near you

or ask your provider to administer the IBS-80 skin patch test.

Untitled design.png

How Much Do You Know About IBS? Check Out This Quiz!

bottom of page